package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;
//集中处理异常

@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题{},异常类型: {}",e.getMessage(),e.getClass());
        final BindingResult result = e.getBindingResult();
        Map<String,String> errorMap = new HashMap<>();
        result.getFieldErrors().forEach((item)->{
                //FieldError获取错误提示
                String message = item.getDefaultMessage();
                //获得错误属性名字
                String field = item.getField();
                errorMap.put(field,message);
            });
        return R.error(BizCodeEum.VALID_EXCEPTION.getCode(),BizCodeEum.VALID_EXCEPTION.getMessage()).put("data",errorMap);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable e){
        return R.error(BizCodeEum.UNKNOW_EXCEPTION.getCode(),BizCodeEum.UNKNOW_EXCEPTION.getMessage());
    }
}
